SMS sender ID showing letters and numbers If numbers and letters are used, the maximum character limit is 11ĭifferent countries and networks set their own rules on how much control they allow in setting the SMS sender ID. See below for an example SMS sender ID that contains both letters and numbers – Test1234. So no dashes or other imaginative ways to create visual interest! Unicode characters are not permitted.Ĭan the SMS sender ID contain a mixture of letters and numbers?Ī sender ID can contain both letters and numbers. No other non-GSM characters are permitted either. The sender ID can only contain letters or numbers, spaces are not permitted. You cannot reply to a text with an alphanumeric sender ID Alternatively, you can set the sender ID as a reply number, allowing replies to be sent.
You can set the sender ID to letters, in which case you cannot reply to the message. (See example below where a message send was attempted and the sender ID of the incoming text was JohnLewis.) If you set the sender ID to letters, recipients will not be able to reply to the text. When SMS began, way back in 1992, the sender ID was set at 11 characters and has remained as the standard since then.īack then, screen sizes were comparatively tiny, so it may not have been possible to fit more than 11 characters on all phone models.Ĭan you reply to a message if the sender ID contains letters? This is simply one of the SMS standards that has always been the case. Why is there such a small limit on the number of characters permitted in a sender ID? So there are two different sender ID maximum lengths, depending on whether you are using letters or numbers. If the sender ID is set as a numeric value, allowing the recipient to reply, then the maximum permitted number of digits is 15. If the SMS sender ID is alphanumeric, the maximum number of characters permitted is 11. What is the maximum length for an SMS sender ID? The SMS Sender ID for this text is Hermes It’s also known as the originator or sometimes the sent address. The SMS sender ID is simply who a text message is from. The SMS sender ID is the text display name that you see at the top of your phone’s screen and is used to identify who sent the message. Let’s start with the basics… What is an SMS sender ID? This short guide answers all the main questions that you may have have along with examples of what can and can’t be done with it. We receive more questions about the SMS sender ID than anything else.
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